Do You Have This Rx400h Problem

[wayhin]

I just got my new RX400h last month and I drove it very gentle. In last two weeks, time to time I heard a big hitting noise from the engine compartment. Now I can reproduce the noise. Whenever I accelerated the car, then very quickly to press the brake, I can hear this noise. Sometimes very loud, feel like something hit my car from the ground. I also have a rattling noise in my car from rear door area.

I drove my car to dealer to fix this noise. I reproduced the noise to the dealer technician and they said they didn't see that before. Now it has been 3 days and they still can not isolate where the noise coming from, neither the rear rattling noise. My service rep told me they will have a specialist to diagnose the problem tomorrow.

Is that a serious problem?

[RX400h]

This is certainly the first I've heard of this type of issue. Please let us know what they find.

[wayhin]

It has been two weeks and the car is still not ready. I were told two days ago that they thought they found the problem but they needed to have the Lexus engineer to examine it before the part is replaced. Last weekend I went to dealer and saw my car has a lot of disassembly parts. It seems it is not an easy fix problem. I don't feel good to see my new car in such condition. I requested the dealer to replace with a new car. Fortunately they agreed to replace with a new car.

[RX400h]

It has been two weeks and the car is still not ready. I were told two days ago that they thought they found the problem but they needed to have the Lexus engineer to examine it before the part is replaced. Last weekend I went to dealer and saw my car has a lot of disassembly parts. It seems it is not an easy fix problem. I don't feel good to see my new car in such condition. I requested the dealer to replace with a new car. Fortunately they agreed to replace with a new car.

THAT'S what separates Lexus from the rest - great customer service!

[speedyg]

They replaced your car with a new one? wow, that's great!

If you ever hear what the problem with your original one was, let us know :)

[stiksandstones]

They replaced your car with a new one? wow, that's great!

If you ever hear what the problem with your original one was, let us know :)

Yes, let us know.

We just hit 20k on our 400h, loved every minute of it.

[wayhin]

Dealer has fixed the problem. They said the problem was the brake actuator internal failure. Dealer technician and Lexus engineers have tested the car whole day on Wed and confirmed that is the root cause. They allowed me to pick up my replaced new car this weekend.